You login with the e-mail address and password combination that you received from your service provider. The e-mail address is needed to enhance the security in the authentication process. If you login for the first time you will be asked to enter a verification code as an extra step in the login process. This verification code is sent to the e-mail address that you use to login with BlueConic.
Note that BlueConic will ask for this extra verification step every time you log in from an unknown environment (different browser or different location), if you completed the verification step on an environment more than 30 days ago, or if you failed to log in correctly 3 times or more in a row.